My $67 sound dampening / undercoating - Toyota Yaris Forums

Mittelklasse · 04-21-2013, 10:40 AM

I did this using roof asphalt coating paint. I only painted the half of the wheel wells that is on the passenger cabin side (the car was undercoated from the dealer).

I also attached patches of rubber insulation foam before coating.

It doesn't reduce the road noise that much, but it does noticeably shift the noise's frequency lower.
I also have done soundproofing using weatherstrip rubber on the B-pillars, and rubber insulation foam in the cavities in front of the doors, and underside of the doors.
The noise became less irritating and I can have a conversation in car clearly up to 80 MPH -- where wind noise is starting to have more effect.

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04-21-2013, 10:40 AM	#38
Mittelklasse Problem, officer? View User's Garage Drives: '06 Yaris 5DLB 1.5 Join Date: Oct 2010 Location: Bangkok, Thailand Posts: 71	I did this using roof asphalt coating paint. I only painted the half of the wheel wells that is on the passenger cabin side (the car was undercoated from the dealer). I also attached patches of rubber insulation foam before coating. It doesn't reduce the road noise that much, but it does noticeably shift the noise's frequency lower. I also have done soundproofing using weatherstrip rubber on the B-pillars, and rubber insulation foam in the cavities in front of the doors, and underside of the doors. The noise became less irritating and I can have a conversation in car clearly up to 80 MPH -- where wind noise is starting to have more effect.